A diastereoselective synthesis of (S,S)-α-fluoro-2,2-dimethyl-1,3-dioxolane-4-propanoic acid methyl ester, a key intermediate for the preparation of anti-HIV effective fluorodideoxynucleosides-Science-Chemical Encyclopedia-lookchem

A diastereoselective synthesis of (S,S)-α-fluoro-2,2-dimethyl-1,3-dioxolane-4-propanoic acid methyl ester, a key intermediate for the preparation of anti-HIV effective fluorodideoxynucleosides
Add time:08/14/2019 Source:sciencedirect.com

(S,S)-α-fluoro-2,2-dimethyl-1,3-dioxolane-4-propanoic acid methyl ester (10), a key intermediate for the preparation of anti-HIV active 9-(2,3-dideoxy-2-fluoro-β-D-threo-pentofuranosyl)adenine (1, FddA) and 1-(2,3-dideoxy-2-fluoro-β-D-threo-pentofuranosyl)cytosine (2, FddC) was prepared via the diastereoselective fluorination of the chiral imide enolate obtained from 8 with N-fluorobenzenesulfonimide. The overall yield of 10 from the readily available 1,2:5,6-di-O-isopropylidene-D-mannitol was 25% (de 93%).

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